as long as 只要 ,和...一样长
例：1.He came in with a face as long as a fiddle and said it was raining again.
他拉长着脸进来说,又下雨了.
2.I don't mind as long as it doesn't rain.
只要不下雨就行了.
as far as 就...而言,至于 到...程度
例：As far as sb knows
就...所知
as far as something can go.
某事物所能达到的最远点.
But as far as I know.
但据我所知.
as well as (除...之外)也,又
例：He grows flowers as well as vegetables.
他既种菜也种花.
as good as 和...几乎一样(差不多)
例：Enough is as good as a feast.
知足常乐.